I have five pallet bins that are 4X4X4 feet, but I just pile them up and let them sit... for a year or more. I'm in no hurry for making compost as I get more than enough from my chicken run compost system. I prefer the chicken run compost because the chickens do all the turning and breaking down the material. I really have no desire to turn my pallet compost piles. But, given time, nature will break it all down.
My cement mixer compost sifter sifts out the finished compost into one gorilla cart, and the larger, unfinished compost goes into a second cart. The unfinished compost will get tossed back into the run to age some more. But, like I said, it only takes me ~15 minutes to sift out 6 cubic feet of finished compost with my compost sifter. So I do that maybe a couple times a year and get more compost than I can use. Last year I was giving chicken run compost away to my neighbors that garden. They loved it.
I understand not having money to invest in a compost sifter. Since I had to buy a brand new cement mixer, my project cost me around $200. That is/was a lot of money to me. However, I was buying bags of compost at the big box stores for about $5.00 per bag. It only took me a number of hours for my cement mixer compost sifter to pay for itself. IIRC, I estimated I was making about $60 of compost per hour of machine use.
I think I hit the breakeven point after 3 short days of sifting the compost and hauling the finished compost out to the garden. Since then, everything is just a bonus. I'll probably have that cement mixer compost sifter for many many years. For me, it was a great investment.
Yep, I offer suggestions that work for me, with no guarantee that it will work for anybody else where they live.
I had composting worms many years ago, but I think I overfed them and they all died. I know worm castings are supposed to be the ultimate compost, but Dear Wife did not like the idea of having a worm bin in the house, and in northern Minnesota, it was too cold to leave them outside in the winter.
So feeding all our kitchen scraps to the chickens and getting eggs and compost from them just works better for me.